DO you really need a 2 inch drop to fill the gap in the wheel wells?
Id personaly go with the lowered springs and shocks, it's an age old proven method, and if you buy quality your garunteed to retain most of the ride, while also inhancing looks, and performance. If you ask me Coil Overs are over rated, and only really use full if you want to a: get into rasing and lowering the car on a regular basis, or b: your a serious racer, and want to play around with corner weighting, and diffrent setups for each track.